text: /* SPDX-License-Identifier: GPL-2.0 */
  #ifndef __NVKM_FIFO_H__
  #define __NVKM_FIFO_H__
  #include <core/engine.h>
  #include <core/object.h>
  #include <core/event.h>
  struct nvkm_fault_data;
  
  #define NVKM_FIFO_CHID_NR 4096
  
  struct nvkm_fifo_engn {
  	struct nvkm_object *object;
  	int refcount;
  	int usecount;
  };
  
  struct nvkm_fifo_chan {
  	const struct nvkm_fifo_chan_func *func;
  	struct nvkm_fifo *fifo;
  	u64 engines;
  	struct nvkm_object object;
  
  	struct list_head head;
  	u16 chid;
  	struct nvkm_gpuobj *inst;
  	struct nvkm_gpuobj *push;
  	struct nvkm_vmm *vmm;
  	void __iomem *user;
  	u64 addr;
  	u32 size;
  
  	struct nvkm_fifo_engn engn[NVKM_SUBDEV_NR];
  };
  
  struct nvkm_fifo {
  	const struct nvkm_fifo_func *func;
  	struct nvkm_engine engine;
  
  	DECLARE_BITMAP(mask, NVKM_FIFO_CHID_NR);
  	int nr;
  	struct list_head chan;
  	spinlock_t lock;
  
  	struct nvkm_event uevent; /* async user trigger */
  	struct nvkm_event cevent; /* channel creation event */
  	struct nvkm_event kevent; /* channel killed */
  };
  
  void nvkm_fifo_fault(struct nvkm_fifo *, struct nvkm_fault_data *);
  void nvkm_fifo_pause(struct nvkm_fifo *, unsigned long *);
  void nvkm_fifo_start(struct nvkm_fifo *, unsigned long *);
  
  void nvkm_fifo_chan_put(struct nvkm_fifo *, unsigned long flags,
  			struct nvkm_fifo_chan **);
  struct nvkm_fifo_chan *
  nvkm_fifo_chan_inst(struct nvkm_fifo *, u64 inst, unsigned long *flags);
  struct nvkm_fifo_chan *
  nvkm_fifo_chan_chid(struct nvkm_fifo *, int chid, unsigned long *flags);
  
  int nv04_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int nv10_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int nv17_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int nv40_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int nv50_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int g84_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gf100_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gk104_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gk110_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gk208_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gk20a_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gm107_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gm200_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gm20b_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gp100_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gp10b_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int gv100_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  int tu102_fifo_new(struct nvkm_device *, int, struct nvkm_fifo **);
  #endif
  